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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Biggest factor of fuel/oil that affects jetting
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[QUOTE="jaguar, post: 1471017, member: 19340"] LAST TEST There was enough of Maxima's Castor 927 left in my last bottle to mix with gas to do a comparison flow test with Maxima's Premium 2. Castor 927 has a 80 degree F viscosity 3.7 times that of Premium 2 but still the flow tests through a 1.2mm orifice were equal. The 927's mixed viscosity was 9.8 and Premium 2's mixed viscosity was 3.9 so this pretty much kills the idea that oil viscosity affects jetting. To make double sure I elongated the length of the exit hole from 2mm to 3.5mm and still they were equal. So obviously there is some exception to the rule of viscosity that I'm not aware of. It probably has to do with the low viscosity values or the properties of gasoline. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Biggest factor of fuel/oil that affects jetting
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